Roller feeding device



J. UYTENBOGAART,

ROLLER FEEDING DEVICE Filed march 15, 19:57

Sept. 6, 1193s.

2 Sheets-Sheet l IIIIII/III/A gwuc/wbo'b J/zannes Sept. 6, 1938. J.UYTENBOGAART 2,129,234

' ROLLER FEEDING DEVICE Filed March 15, 1937 2 Sheets-Sheet 2 (7 0/2cannes U yfen bo gaarf Patented Sept. 6, 1938 UNITED STATES PATENTOFFICE ROLLER FEEDING DEVICE Delaware Application March 15, 1937, SerialNo. 131,057 In Germany March 23, 1936 Claims.

This arrangement relates to an improved drawing roller arrangement foruse on an apparatus for the manufacture of freshly spun artificial silk.

5 In the manufacture of artificial silk a spinning solution ofcellulosic origin is made up and extruded through the orifices of aspinning nozzle into a coagulating medium. The filaments thus formed aredrawn therethrough by either the 0 collecting device or by means ofintermediate power-driven rollers.

These roller arrangements are sometimes used for stretching the threador for prolonging the coagulating length. If the purpose is to prolongthe path of the filaments between the spool and spinning nozzle, thefilaments are passed a plurality of times from one roller to another.

These rollers are in spaced relation and at an angle, one to the other,whereby the thread is automatically advanced over the rollers in ahelical path. The rollers may be driven and usually are.

It Was found, however that the angle at which the rollers were placedwith relation to one another was not always the position best suited forall spinning conditions. In order to change this angle to the onerequired it was necessary to discontinue drawing the thread until theproper angular relation was obtained. This resulted in a number ofdisadvantages in view of the fact that the spinning solution was stillrunning and that it would be inconvenient to shut it off.

In United States Patent No. 2,034,657 is disclosed a roller drawingdevice which is of the same general type as the roller arrangement ofthis application. However, the present invention is considered animprovement of the roller arrangement disclosed in the patent for thereason that the driving mechanism of the rollers is enclosed and theadjusting means also protected 40 from dust, dirt and the spray oftreating liquids should these be used on the threads while running overthe rollers.

It is therefore one object of the present invention to devise a drivenroller arrangement whose angular relationship can be quickly and easilychanged without interruption of the drawing of the threads.

Another object of the present invention is to devise a driven rollerarrangement which is 50 mounted on a spinning machine in an improved andnovel manner whereby a fine and accurate adjustment of the angularrelationship of the rollers may be made.

These and other objects of the present invention will in part becomeobvious and will in part be pointed out in the following specificationand appended claims when taken in conjunction with the attacheddrawings, in which:

' Fig. 1 is a side elevation and part section of the novel rollerarrangement comprising the invention,

Fig. 2 is a sectional view taken on the line 2-2 of Fig. 1,

Fig. 3 is an enlarged detail sectional View of the adjustment mechanismtaken on the line 3-3 of Fig. 3 and Fig. 4 is a vertical section takenon the line 4-4 of Fig. 3. In the drawings in which like numerals ofreference indicate like parts, I refers to the back plate of a spinningmachine, 2 the framework of the said machine upon which the rollerarrangement is mounted.

The upper roller 3 is mounted on a shaft 4 rotated in bearings 5-5mounted in a casing 6. The casing 6 has a cover plate 1 detachablysecured thereon.

A spiral gear 8 is mounted on the roller shaft 4 and is driven by thegear I0 mounted on the drive shaft ll whereby the roller 3 is rotated.

The lower roller I2 is mounted on a shaft [3 which rotates in bearingsl4l4 mounted in a gear casing IS.

The gear casing l5 comprises a split casing arrangement which is mountedfor pivotal movement around a hollow sleeve casing l6 which encirclesthe drive shaft IT for the lower roller I2.

To prevent endwise movement of the casing 15 on the sleeve l6,projections l8 are integrally formed on the sleeve IS.

The drive shaft I! is supported by the hollow sleeve casing l6 which inturn pivotally supports the gear casing l5. The drive shaft l1 forms thecenter of the pivotal movement of the said gear casing f5.

Mounted on the roller drive shaft I l is a spiral gear l9 which mesheswith the spiral gear 20 mounted on the roller shaft l3 for driving theroller I2.

An extension bracket 22 is formed on the lower portion of the casing l5and has secured therein a forked element 23. A cross-pin 24 is mountedin the fork element 23. The cross-pin 24 has an internally threaded bore25 through which extends the threaded adjusting screw 26. The screw 26rotates in a swivelled bearing 21 and is prevented from endwise movementby collars 28-28. The cross-pin 21 is pivotally mounted in brackets29-29 mounted on a cross beam of the frame 2 which also supports theback plate I of the spinning machine. The adjusting screw element 26extends through an opening 3| formed in the back plate I of the spinningmachine and squared at 30 and thereby adapted to receive a socket wrenchfor the turning of the said screw adjusting element 26 for changing theangular relationship of the roller l2 with the roller 3. The opening 31has a flat cover 32 for the purpose of preventing dirt or treatingliquids from collecting on the adjusting mechanism.

Due to the construction of the thread of the adjusting means it is quiteunlikely after the position of the roller has been set that any changewill inadvertently take place in the said angular adjustment but if itis desired to make certain that no change in the adjusting screw willtake place it is obvious that any suitable locking means may be used toprevent such a contingency and a locking up may be used or any othersuitable means.

From the foregoing description, taken in connection with theaccompanying drawings, it is thought the complete construction,operation and advantages of the invention will be clear to those skilledin the art to which it relates.

As many apparently widely different embodiments of this invention may bemade without departing from the spirit thereof, it is to be understoodthat it is not intended to limit the invention to the specific formthereof except as indicated in the appended claims.

What is claimed is:

1. A device for drawing threads comprising, in combination, a rollermounted and. driven at one end, a second roller, a driven shaft on whichsaid roller is mounted for rotation therewith, a driving shaft fortransmitting power to said driven shaft, a gear casing in which saiddriven shaft is mounted, said gear casing mounted to pivot about saiddrive shaft, and means to move said gear casing aboutv said drivingshaft.

2. A device for drawing threads comprising, in combination, a rollermounted and driven at one end, a second roller, a driven shaft on whichsaid roller is mounted for rotation therewith, a

driving shaft for transmitting power to said driven shaft, a gear casingin which said driven shaft is mounted, said gear casing mounted to pivotabout said drive shaft, and means to move said gear casing about saiddriving shaft, said last mentioned means comprising a threaded element.

3. A device for drawing threads comprising, in combination, a rollermounted and driven at one end, a second roller, a driven shaft'on whichsaid roller is mounted for rotation therewith, a driving shaft fortransmitting power to said driven shaft, a gear casing in which saiddriven shaft is mounted, said gear casing mounted to pivot about saiddrive shaft, and means to move said gear casing about said drivingshaft, said last mentioned means comprising an adjusting elementpivotally mounted and having a threaded end, and a cross pin pivotallyattached to said gear casing, said cross pin having a threaded bore toreceive the threaded end of said adjusting element.

4. A device for drawing threads comprising a rolIer, a driven shaft onwhich said roller is mounted for rotation therewith, a driving shaft fortransmitting power to said driven shaft, a gear casing in which saiddriven shaft is mounted, said gear casing mounted to pivot about saiddrive shaft and means to move said gear casing about said driving shaft.

5. A device for drawing threads comprising a roller, a driven shaft onwhich said roller is mounted for rotation therewith, a driving shaft fortransmitting power to said driven shaft, a gear casing in which saiddriven shaft is mounted, said gear casing mounted to pivot about saiddriven shaft, and means to move said gear casing about said drivenshaft, said last mentioned means comprising an adjusting elementpivotally mounted and having a threaded end, and a cross pin pivotallyattached to said gear casing, said cross pin having a threaded bore toreceive the threaded end of said adjusting element.

J OHANNES UYTENBOGAART.

